[jdk25u] RFR: 8369560: Slowdebug build without CDS fails

[Matthias Baesken]

Backport of 8369560, vmClasses needs manual adjustment and remove empty line

-------------

Commit messages:
 - Backport 0af959a340fe68caa47fc476ff861f0e86087162

Changes: https://git.openjdk.org/jdk25u/pull/311/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=311&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8369560
  Stats: 6 lines in 2 files changed: 6 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk25u/pull/311.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/311/head:pull/311

PR: https://git.openjdk.org/jdk25u/pull/311